Double-drive planetary transmission driving system of shield machine

Abstract

The invention discloses a double-drive planetary transmission driving system of a shield machine. The system follows a driving law of double-input, the conflux output of input planet carriers, the diversion of an output planetary system I and an output planetary system II and the conflux to a twin ring gear, has the double-input and single-output characteristics, achieves the purpose of increasing torque and widening speed adjustable range, realizes the low speed high torque output by changing an output torque and a rotating speed, changes the driving means of a motor, can obtain many different output working conditions and can be suitable for many types of shield machines. The asynchronous problem existing in a structure of multipath speed changes and a plurality of power input utilized by a traditional driving system is fundamentally solved. A sealed planet wheel train load is commonly shared by two output planetary systems and twin gear rings and the function of power diversion andconflux is realized, thereby the bearing capacity is increased. The system has larger transmission ratio, can adapt to the high powerful output and can bear heavier construction load.

Description

technical field [0001] The invention relates to a shield machine drive assembly, in particular to a shield machine double-drive planetary variable speed transmission system. Background technique [0002] The shield machine is a special construction machine for the construction of the shield method. Because the shield construction has the advantages of high mechanization, fast construction speed, quality assurance, high safety, wide practicability, less impact on ground buildings and environmental protection, etc., it has been It is widely used in large-scale projects such as subways, highways, railways, gas transmission, water transmission, municipal administration, and hydropower tunnels. [0003] Since shield machines are mostly used in more complex working environments, the requirements for the drive and transmission system of shield machines are relatively high, requiring them to be able to adapt to harsh working environments, to withstand heavy loads and high impacts, a...

AI Technical Summary

Problems solved by technology

In the prior art, in order to achieve different output states, multiple transmission systems and multiple power input devices are commonly used. Different transmission systems finally output power to the cutterhead support of the shield machine, so that the drive of the entire shield machine The system is bulky, complex in structure, high in manufacturing cost, and single in output state

In the prior art, in order to increase the output power of the drive system and adapt to different working conditions, a multi-stage planetary transmission system is generally used to make the transmission system have a larger transmission ratio, thereby obtaining a larger power output. output and carry a large construction load, each transmission component inevitably needs to increase its volume according to the load to increase its ability to transmit power, so the transmission system has a large volume and weight, high material and processing costs, and installation It is more difficult to maintain and maintain. At the same time, the transmission chain of the transmission system is longer, which greatly reduces the efficiency of the transmission system.

[0005] Therefore, there is a need for a new type of shield machine drive system to replace the traditional system, which can be applied to different working conditions and has the characteristics of high power output, large load capacity, large transmission ratio, small size and light weight, and can reduce material costs. Cost and manufacturing cost, reduce the difficulty of installation and disassembly, reduce maintenance and overhaul costs, and fundamentally solve the asynchronous problem of the multi-way variable speed and multiple power input structures used in traditional drive systems

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